Subject: NA Digest, V. 94, # 18 NA Digest Sunday, May 1, 1994 Volume 94 : Issue 18 Today's Editor: Cleve Moler The MathWorks, Inc. moler@mathworks.com Today's Topics: Calendar Request for Symmetric Complex Eigensolver Sparse, Symmetric, LU-decompostion IBG, Geometry and Grid Generation Library Change of Address for Michael Eiermann Change of address for Siamak Hassanzadeh Invitation to Launch of SEL-HPC FTP Reports from Technical University Chemnitz Fifth SIAM Applied Linear Algebra Conference SIAM Meeting Deadlines Monte Carlo Methods in Scientific Computing South African Symposium on Numerical Mathematics Workshop on Parallel Scientific Computing in Denmark Research Position at Australian National University Position at University of the Witwatersrand Contents, Approximation Theory Contents, BIT Submissions for NA Digest: Mail to na.digest@na-net.ornl.gov. Information about NA-NET: Mail to na.help@na-net.ornl.gov. ------------------------------------------------------- From: NA Digest Date: Sun May 1 17:12:54 EDT 1994 Subject: Calendar Calendar of Forthcoming Events Date Topic Place NA Digest # May 1- 5 Applied Computational Fluid Dynamics Basel, Switzerland 15 May 14 East Coast Algebra Day Philadelphia, PA 17 May 16-20 Mathematic Problems in Industry Boulder, CO 6 May 16-18 Spectral Multi-Domain Workshop Raleigh, NC 14 May 18 Environmental Mathematics Amsterdam 16 May 19-20 Annual PVM Users' Group Meeting Oak Ridge, TN 15 May 23-25 Parallel Numerical Algorithms Hampton, VA 4 May 23-25 Scalable High-Performance Computing Knoxville, TN (93) 40 May 31... Parallel Computing in Fluid Dynamics Delft, Netherlands 17 May 30... Numerical Parallel Algorithms Penyiscola, Spain 17 June 2- 3 Computational Fluid Dynamics Toronto, Canada 2 June 6- 8 Supercomputing Symposium '94 Toronto, Canada 2 June 6-10 Applied and Industrial Mathematics Linkoping, Sweden 14 June 6-14 Mathematics Modeling Workshop Claremont, CA 9 June 11-15 Continuous Algorithms and Complexity Mount Holyoke, MA 13 June 15-18 SIAM Applied Linear Algebra Park City, UT 17 June 20-23 Parallel Scientific Computing Lyngby, Denmark 18 June 22-25 SIAM Conference on Discrete Mathematics Albuquerque, NM June 23-25 Monte Carlo Methods Las Vegas, NV 18 June 27-28 5th Stockholm Optimization Days Stockholm, Sweden 6 July 4- 6 South African Numerical Mathematics Umhlanga Rocks, Natal 18 July 5- 7 Simulation of Devices and Technologies Obninsk, Russia 7 July 11-15 IMACS World Congress Atlanta, GA July 11-15 Course on MODULEF Finite Elt. Library University Park, PA 12 July 16... Mathematics of Numerical Analysis Park City, UT 5 July 18-29 SERC Numerical Analysis Summer School Leicester, UK 16 July 18-30 Summer Short Courses in CFD Istanbul, Turkey 15 July 22-23 Control Problems in Industry San Diego, CA 3 July 24 AWM Workshop for Pre- and Post-docs San Diego, CA 3 July 25-29 SIAM Annual Meeting San Diego, CA 3 Aug. 1- 4 Computation Physics Lyngby, Denmark 11 Aug. 1- 5 Computational Science Workshop Los Alamos, NM 16 Aug. 15-19 Math Programming Ann Arbor, MI Aug. 21-26 Numerical Methods Sofia, Bulgaria 11 Aug. 22-25 Continuum Mechanics Prague, Czech Rep. 6 Aug. 22-25 SVD and Signal Processing Leuven, Belgium 4 Aug. 22-25 Simulation Zurich, Switzerland 9 Aug. 29-31 Algorithms and Parallel VLSI Leuven, Belgium 4 Aug. 29... Mathematical Modelling Prague, Czech Rep. 1 Sep. 6-10 Mathematics in Industry Kaiserslatern, Germany 7 Sep. 22-24 Hellenic Mathematical Society Athens, Greece 8 Sep. 26-28 Multilevel Methods Meisdorf, Germany 16 Sep. 26-30 Total Positivity Jaca, Spain 5 Oct . 2- 6 Applications of Operator Theory Winnipeg, Manitoba 17 Oct. 20-22 Systems, Control, Information Wuhan, China 8 Nov. 14-18 SuperComputing '94 Washington, DC 6 Nov. 30... Computational Methods in Engineering Belo Horizonte, Brazil 11 1995 Jan 3- 6 Computational Computer Design Maui, Hawaii 17 Jan. 9-10 Conference Honoring Ake Bjorck Linkoping, Sweden 14 Jan. 15-18 Bond Graph Modeling and Simulation Las Vegas, NV 4 Jan. 16-18 Markov Chains Raleigh, NC 7 Feb. 15-17 SIAM Conference on Parallel Processing San Francisco, CA Feb. 19-25 Applications of Interval Computations El Paso, TX 16 Apr. 24-28 Wave Propagation Juan-les-Pins, France 8 July 3- 7 ICIAM, Int'l Cong. Indust. Appl. Math. Hamburg, Germany 9 ------------------------------ From: Najib Abboud Date: Mon, 25 Apr 1994 16:33:30 -0400 Subject: Request for Symmetric Complex Eigensolver I am interested in obtaining fortran source for a solver that computes ALL eigenvalues and eigenvectors of the GENELIZED eigenvalue problem: A.X = (lambda)B.Y where the coefficient matrices A and B are COMPLEX SYMMETRIC (not HERMITIAN, not POSITIVE DEFINITE). Thank you Najib Abboud Email: najib@wai.com Weidlinger Associates 333 Seventh Avenue New York NY 10001 ------------------------------ From: Harald von Sosen Date: Fri, 29 Apr 1994 15:48:54 -0700 Subject: Sparse, Symmetric, LU-decompostion I am looking for a code to compute the LU-decomposition of a sparse, symmetric matrix. I would like a routine which pivots and minimizes the fill-in. Does anyone have such a code or know where I can get one? Any help is greatly appreciated. Harald von Sosen hvs@ama.caltech.edu ------------------------------ From: Ilja Schmelzer Date: Wed, 27 Apr 1994 18:33:48 +0200 Subject: IBG, Geometry and Grid Generation Library IBG Version 1.1 Announcement IBG is a library of routines written in ANSI C for geometry description and grid generation. It allows unstructured simplicial grid generation in 1D, 2D and 3D in different regions and on their boundaries without any restrictions for the topology, with user-controlled isotropical or anisotropical refinement, based on a combined octree/Delaunay technique. We have good grid quality especially inside the regions (obtuse angles only in the neighbourhood of boundary) and approximately linear time dependence. A nonstandard interface for the geometry description will be used. The geometry description part allows to create and modify this interface. Possibilities for geometry description are volume grids (f.e. from the previous time step), boundary grids, pixmaps, a function defining the region for a given point. They can be modified with characteristic functions for the parts which have to be changed. Other possibilities (f.e. boundary splines, boolean operations) can be easily implemented if necessary. The documentation is available in different formats (ASCII, Postscript, DECWindows Bookreader). If you are interested, please contact Ilja Schmelzer, Institut fuer Angewandte Analysis und Stochastic, Mohrenstr. 39 D-10178 Berlin Germany e-mail: schmelzer@iaas-berlin.d400.de Tel.: (+49) 30 20377 567 Fax: (+49) 30 200 4975 ------------------------------ From: M. Eiermann Date: Thu, 28 Apr 1994 19:16:09 -0600 Subject: Change of Address for Michael Eiermann New address for Michael Eiermann (from May 1, 1994): Michael Eiermann Institut fuer Angewandte Mathematik II TU Bergakademie Freiberg D-09596 Freiberg Germany email: eiermann@blauwal.mathe.ba-freiberg.de phone: (49) 3731-51-2322 fax: (49) 3731-51-2178 ------------------------------ From: Siamak Hassanzadeh Date: Fri, 29 Apr 1994 18:11:26 +0800 Subject: Change of address for Siamak Hassanzadeh Effective April 25, 1994, my new address and affliation is as follows: Siamak Hassanzadeh Member of Technical Staff | siamak@hpsc.corp.sun.com Sun Microsystems Computer Corp. | Voice: (415) 336-0118 2550 Garcia Avenue, MS PAL1-316 | Fax: (415) 494-3631 Mountain View, CA 94043-1100 ------------------------------ From: C. Walshaw Date: Wed, 27 Apr 1994 16:31:20 +0100 (BST) Subject: Invitation to Launch of SEL-HPC An open invitation to the launch of the London and South-East Centre for High Performance Computing (SEL-HPC) and its Education and Training programme 10th May, 2.30pm at ULCC, 20 Guildford Street, London WC1N 1DZ At the launch you will be able to hear about SEL-HPC's plans for assisting development of HPC awareness in all Higher Education Institutions in the London and South-East region through Education and Training and related activities. In addition, you will be able to find out how HEIs can become formal Associates of SEL-HPC or collaborate with its programme. The formal presentations will be followed by an informal reception to celebrate the Centre's launch. SEL-HPC is a consortium formed by the London Parallel Applications Centre, the University of Greenwich, the University of Kent and ULCC and is one of five such regional centres of expertise funded on behalf of the Higher Education Funding Councils for England, Scotland and Wales through the Joint Information Systems Committee (JISC) New Technologies Initiative. The other regional centres are located at University of Edinburgh, University of Manchester, University of Southampton and University of Wales (Cardiff). In addition, there is a centre of expertise supported at Queen's University, Belfast. As regional centres, each will be concentrating on the needs of the HEIs in its own region and this launch meeting gives an opportunity for those in London and the South-East to find out about their HPC Centre and its plans and to provide input to its further development. SEL-HPC's planned activities include designing a comprehensive range of HPC courses for use in staff and postgraduate training - some courses will be given as part of the programme and course materials will be made available to trainers at other sites. Topics will cover: introduction to HPC systems basic parallel methodologies parallel languages, e.g. HPF/Fortran 90, occam2.5 SIMD and MIMD architectures workstation and supercomputer interaction applications techniques software tools for parallel environments The study of networking and workstation clusters will be carried out in programmes linked to the Centre thereby ensuring early incorporation of developments into the training courses. Other areas of investigation will include interdisciplinary applications and the support of technology development. The consortium also intends to foster industrial collaboration where appropriate by technology transfer and joint projects. SEL-HPC can provide access to a wide range of HPC hardware to support education and training activites, including the Convex at ULCC, an 8192-processor MasPar, a 155-node Meiko, many other multi-transputer and i860 machines, and several DAPs. Please register by Wednesday 4th May with Anne Stephenson ULCC 20 Guildford Street London WC1N 1DZ FAX: 071-242 1845 e-mail: A.Stephenson@ulcc.ac.uk ------------------------------ From: Volker Mehrmann Date: Sun, 1 May 94 17:46:52 MESZ Subject: FTP Reports from Technical University Chemnitz The following preprints are available via ftp from the Numerical Analysis Group of the Technical University Chemnitz. Date May 1.1994 to get the papers proceed as follows: ftp ftp.tu-chemnitz.de login name: ftp password: your email address: cd /pub/Local/mathematik (Observe the capital L in Local) There are the following directories containing preprints in Numerical Analysis or Scientfic Computing: Apel Benner Dempe He Mehrmann Rath Ruede SPC each directory contains a file README with titles and abstracts of the papers. ------------------------------ From: Sven Hammarling Date: Tue, 26 Apr 94 21:48:32 +0100 Subject: Fifth SIAM Applied Linear Algebra Conference CALL FOR POSTERS FOR SIAM APPLIED LINEAR ALGEBRA CONFERENCE IN SNOWBIRD, UTAH June 15th - 18th The organizing committee for the 1994 Applied Linear Algebra Conference is placing great importance on the poster sessions, and wishes to encourage the presentations of high quality posters. To this end we are soliciting posters for presentation at the conference and will be awarding a prize for the best poster. It is not necessary to have submitted a paper in order to bring a poster - do use the poster session to tell us about your work. Posters that do accompany papers should not reproduce the paper, but should be regarded as an opportunity to supplement and advertize the paper, perhaps by highlighting or amplifying important features. The best poster will be judged upon both the content and presentation of the poster, and the prize will be presented at the conference banquet. A display area of 4ft (high) by 6ft (wide) will be available for posters, and authors are expected to be present during their half-hour attended poster session and the following common-interest session in order to facilitate discussion. It would be helpful to inform SIAM in advance if you intend to bring a poster, but this is not essential. It is more important that you bring your poster! ------------------------------ From: Trini Flores Date: Thu, 28 Apr 94 10:21:05 EST Subject: SIAM Meeting Deadlines DATES TO REMEMBER MAY 16, 1994 Deadline for submission of 2-page contributed abstracts for presentation at the 7th SIAM Conference on Parallel Processing for Scientific Computing, Feb 15-17, 1995, San Francisco MAY 23, 1994 Deadline for room reservations at the Snowbird Ski and Summer Resort for attendees of the 5th SIAM Conference on Applied Linear Algebra, June 15-18, 1994, Snowbird, Utah. MAY 30, 1994 Deadline for room reservations at the Ramada Hotel Classic for attendees of the 7th SIAM Conference on Discrete Mathematics, June 22-25, 1994, Albuquerque, New Mexico JUNE 1, 1994 Deadline for pre-registration for attendees of the 5th SIAM Conference on Applied Linear Algebra, June 15-18, 1994, Snowbird, Utah JUNE 8, 1994 Deadline for pre-registration for attendees of the 7th SIAM Conference on Discrete Mathematics, June 22-25, 1994, Albuquerque, New Mexico To obtain electronic versions of the programs for both the Applied Linear Algebra and Discrete Mathematics conferences, and also the call for papers for the 1995 conferences on Parallel Processing; Control and Its Applications; Mathematical and Computational Issues in the Geosciences; and the ACM-SIAM Symposium on Discrete Algorithms, send e-mail to: meetings@siam.org The 1994 SIAM Annual Meeting preliminary program with the hotel and registration information can also be obtained via e-mail to: meetings@siam.org ------------------------------ From: Harald Niederreiter Date: Tue, 26 Apr 94 09:09:22 +0200 Subject: Monte Carlo Methods in Scientific Computing A CONFERENCE ON MONTE CARLO AND QUASI-MONTE CARLO METHODS IN SCIENTIFIC COMPUTING UNIVERSITY OF NEVADA, LAS VEGAS June 23-25, 1994 The conference on Monte Carlo and Quasi-Monte Carlo Methods in Scientific Computing will be held in the Thomas T. Beam Engineering Complex, University of Nevada, Las Vegas on June 23-25,1994. ORGANIZING COMMITTEE Harald Niederreiter, Chair Gary Mullen Peter Shiue INVITED SPEAKERS R. Caflisch (University of California, Los Angeles) B.L. Fox (University of Colorado at Denver) P.W. Glynn (Stanford University) G. Mullen (Pennsylvania State University) H. Niederreiter ( Austrian Academy of Sciences) J. Spanier (Claremont Graduate School) CALL FOR PAPERS Authors who wish to contribute 20 minute talks are invited to submit 1 copy of an abstract containing at most 300 words. The abstracts should be sent to Harald Niederreiter, Institute for Information Processing, Austrian Academy of Sciences, Sonnenfelsgasse 19, A-1010 Vienna, Austria; Gary Mullen, Math. Dept., Pennsylvania State Univ., University Park, PA 16802; or Peter Shiue, Dept. of Math. Sci., Univ. of Nevada, Las Vegas, NV 89154. DEADLINES Submission of Abstracts: May 16, 1994 Acceptance of Abstracts: May 31, 1994 Submission of Full Papers: October 31, 1994 FINANCIAL SUPPORT A limited amount of partial support is available from NSF-Nevada EPSCoR. Requests for partial support should be sent to Peter Shiue, Department of Mathematical Sciences, University of Nevada, Las Vegas, NV 89154-4020; 702-895-3748; FAX: 702-895-4343; email: (shiue@nevada.edu) by May 15. FURTHER INFORMATION For further information, please contact Harald Niederreiter, Institute for Information Processing, Austrian Academy of Sciences, Sonnenfelsgasse 19, A-1010 Vienna, Austria; email: nied@qiinfo.oeaw. ac.at, Gary Mullen, Math. Dept., Pennsylvania State Univ., University Park, PA 16802; 814-865-9413; email: mullen@math.psu.edu, or Peter Shiue, Dept. of Math. Sci., Univ. of Nevada, Las Vegas, NV 89154; 702-895-3748; FAX: 702-895-4343; email: shiue@nevada.edu. ------------------------------ From: Colin Wright Date: Thu, 28 Apr 1994 13:36:23 Subject: South African Symposium on Numerical Mathematics TWENTIETH SOUTH AFRICAN SYMPOSIUM ON NUMERICAL MATHEMATICS 4---6 July 1994 The Twentieth South African Symposium on Numerical Mathematics (SANUM94), organized by the South African Numerical Mathematics Society, will be held at the Breakers Sun Hotel, Umhlanga Rocks, north of Durban, Natal on 4, 5 and 6 July 1994. Contributed presentations of 20 minutes duration on any aspect of numerical mathematics and its applications are hereby solicited. For further information contact: Colin J Wright (wright@gauss.cam.wits.ac.za) ------------------------------ From: unijw@fysik.uni-c.dk> Date: Thu, 28 Apr 1994 14:26:51 +0200 (MET DST) Subject: Workshop on Parallel Scientific Computing in Denmark SECOND ANNOUNCEMENT THE CALL FOR PAPERS WORKSHOP ON PARALLEL SCIENTIFIC COMPUTING organised by: UNI*C (The Danish Computing Centre for Research and Education), IMM (The Institute for Mathematical Modelling of the Technical University of Denmark) and Jack Dongarra (Tennessee University & Oak Ridge Nat. Lab.,USA) Dates: June 20, 1994 - Tutorial on heterogeneous network computing June 21 - 23, 1994 - Workshop sessions Place: UNI*C, The Danish Computing Centre for Research and Education, The Technical University of Denmark, 2800 Lyngby, DENMARK Key & Some Contributed Talks Vincent A. Barker, Technical University of Denmark, Denmark; Computing eigenvalues of sparse matrices on the Connection Machine Gert D. Billing, Copenhagen University, Denmark; Quantum Mechanical Reactive Scattering John Brown, Pentum Group, Inc., California, USA; A Transform Approach to Fast Matrix Multiplication. Jack Dongarra, Tennessee University & Oak Ridge Nat. Lab., USA; Constructing Numerical Software Libraries for High-Performance Computing Environments (ScaLAPACK) Iain Duff, RAL, United Kingdom and CERFACS, France; The CERFACS experience Leonard Freeman, Manchester University, United Kingdom; Parallel Algorithms for Numerical Integration Al Geist, Oak Ridge National Laboratory, USA; Cluster Computing: The Wave of the Future? Sven Hammarling, Numerical Algorithms Group Ltd., United Kingdom; The Challenge of Portable Libraries for High Performance Machines Per Christian Hansen, UNI*C, Denmark; Regularisation Methods for Large-Scale Inverse Problems Bill Harrod, Cray Research, USA; Numerical Algorithms for the Cray T3D (Cray Massively Parallel Computer) Axel Hunding, Copenhagen University, Denmark; Biocybernetics: Nonlinear dynamics in biochemical control systems, and morphogenetic fields. S. Lennart Johnsson, Thinking Machines Corp. & Harvard University, USA; Scientific Software Libraries for Scalable Architectures Kaj Madsen, Technical University of Denmark, Denmark; Parallel interval methods for perturbed linear systems and global optimisation. Oliver A. McBryan, University of Colorado, USA; Grand Challenge Computing: Stretching the Limits of HPCC. Peter Michielse, Convex Computer Corporation, The Netherlands; Programming the Convex Exemplar Series SPP system. Ole H. Nielsen, UNI*C, Denmark; Performance of a molecular - dynamics algorithm on Connection Machines CM-200 and CM-5. Dennis Parkinson, Thinking Machine Corporation, United Kingdom; Experiments in neural net computation on CM-5 John Perram, Odense University, Denmark; Parallel Molecular Dynamics Stig Skelboe, UNI*C and Copenhagen University, Denmark; Interrelation between parallel algorithms and computer architecture. Jens N. Soerensen, Technical University of Denmark, Denmark; Simulation of Fluid Dynamical Flow Problems Per Grove Thomsen, Technical University of Denmark, Denmark; Real Time Simulation in a Cluster Computing Environment. Soeren Toxvaerd, Copenhagen University, Denmark; Parallel computations in Molecular Dynamics. Jerzy Wasniewski, UNI*C, Denmark; Comparison of Massively Parallel Computers Using Air Pollution models. Zahari Zlatev, Environmental Institute, Denmark; Paraspar: Parallel Solvers for Sparse Linear Algebraic Systems. Still, a limited number of contributed 20 min. talks can be selected for the workshop. Poster sessions will also be organised. Potential contributors should notice the following deadlines. Abstracts no more than one A4 page (talks and posters) by soon as possible. Papers between 5 and 10 pages for conference proceedings by May 15, 1994. A program with the talks at the workshop will be sent to the participants in the beginning of June. Mailing list: All the workshop information will be distributed by the mailing list of para94-l@vm.uni-c.dk To subscribe send a message to listserv@vm.uni-c.dk containing sub para94-l Yourname ------------------------------ From: Richard Brent Date: Wed, 27 Apr 94 11:30:34 EST Subject: Research Position at Australian National University THE AUSTRALIAN NATIONAL UNIVERSITY Research School of Information Sciences and Engineering COMPUTER SCIENCES LABORATORY RESEARCH FELLOW (Level B) Applications are invited for a fulltime research position as Research Fellow in the Computer Sciences Laboratory. Current research in the Computer Sciences Laboratory includes (1) design and analysis of algorithms, with an emphasis on parallel algorithms; (2) software for scientific and engineering applications on parallel computers; (3) aspects of human-machine systems, including speech recognition, speaker characterization, image analysis and processing; (4) languages, compilers and software tools for parallel (MIMD) computers. The Computer Sciences Laboratory is a Department within the Research School of Information Science and Engineering. Facilities include access to a 128-cell Fujitsu AP1000, a 32-processor Connection Machine (CM5), and a Fujitsu VP2200/10 vector processor. Applicants should have a strong research record and interests in one of the areas mentioned above. There are no undergraduate teaching duties. Most of the appointee's time will be devoted to research; there may be a limited involvement in supervision of postgraduate students and teaching of graduate courses. Enquiries to: Professor R. P. Brent (e-mail rpb@cslab.anu.edu.au). Closing date: 16 May 1994 Reference: ISE 8.3.1 Salary $A41,000 - $A48,688 p.a. Appointment will be for three years in the first instance with a possible extension to five years. Applications should quote the reference number, include names and addresses (including FAX or e-mail) of at least three referees, and be addressed to: The Secretary The Australian National University Canberra, ACT 0200, Australia Further information, including the selection criteria, are available by anonymous ftp from nimbus.anu.edu.au:/pub/cslab/advertisement.* ------------------------------ From: Colin Wright Date: Thu, 28 Apr 1994 14:07:54 Subject: Position at University of the Witwatersrand UNIVERSITY OF THE WITWATERSRAND JOHANNESBURG, SOUTH AFRICA Department of Computational and Applied Mathematics Position in Image Processing Applications for a tenure-track lectureship in the area of Image Processing are invited. Applicants with a PhD and a strong commitment to teaching and research are encouraged to apply. The succesful applicant will be expected to contribute both to the supervision of post-graduate students and also to the Department's undergraduate teaching programme. The Image Processing group is involved in the wider field of inverse problems and has several active research projects involving pattern recognition algorithms, neural networks and maximum entropy regularization. Close contacts exist with industry. Send vitae with names and addresses of three professional referees to: C J Wright, Head, Department of Computational and Applied Mathematics, University of the Witwatersrand, Johannesburg, South Africa, fax Intl+27-11-339-7965, e-mail wright@gauss.cam.wits.ac.za. Selection process begins May 12 and continues until position is filled. ------------------------------ From: Marilyn Radcliff Date: Wed, 27 Apr 1994 14:04:12 -0400 (EDT) Subject: Contents, Approximation Theory Journal of Approximation Theory, Volume 76, Number 3, March 1994 Table of Contents Maoli Chang. The Behavior of Polyharmonic Cardinal Splines as Their Degree Tends to Infinity, 287-302. Charles K. Chui and Jian-Zhong Wang. Quasi-Interpolation Functionals on Spline Spaces, 303-325. M. Finzel. Linear approximation in $\ell_n^\infty$, 326-350. S. Belmehdi and A. Ronveaux. Laguerre-Freud's Equations for the Recurrence Coefficients of Semi-classical Orthogonal Polynomials, 351-368. Vilmos Totik. Strong Converse Inequalities, 369-375. Jarom\'ir \u Sim\u sa. Approximations of Two-Place Functions by Finite Sums of Terms with Separable Variables, 376-392. Ding-Xuan Zhou. Weighted approximation by Sz\'asz--Mirakjan operators, 393-402. Ding-Xuan Zhao. Weighted Approximation by Multidimensional Bernstein Operators, 403-422. Note Kazuaki Kitahara. Weak Tchebycheff Systems, 423-425. Marilyn Radcliff radcliff@math.ohio-state.edu Department of Mathematics radcliff@ohstpy.bitnet The Ohio State University 1-(614)-292-3317 (office) 231 West Eighteenth Avenue 1-(614)-292-4975 (department) Columbus, Ohio 43210-1174, U.S.A. 1-(614)-292-1479 (FAX) ------------------------------ From: Ake Bjorck Date: Thu, 28 Apr 94 18:02:28 +0200 Subject: Contents, BIT Contents BIT Volume 34, No. 1 (1994) Solution of augmented linear systems using orthogonal factorizations {\AA}. Bj\"orck and C. C. Paige, pp. 1--24 A transformation for the analysis of DIMSIMs J. C. Butcher, pp 25--32 Quadratic spline collocation methods for elliptic partial differential equations C. C. Christara, pp. 33--61 On integrating vertex singularities using extrapolation T. Espelid, pp. 62--79 The non-existence of symplectic multi-derivative Runge-Kutta methods E. Hairer, A. Murua, and J. M. Sanz-Serna, pp. 80--87 Runge-Kutta stability on a Floquet problem D. J. Higham, pp. 88--98 Fast transforms for tridiagonal linear equations T. Huckle, pp. 99--112 Two counterexamples related to the Kreiss matrix theorem J. F. B. M. Kraaijevanger, pp. 113--119 Some nodes matrices appearing in the numerical analysis for singular integral equations G. Mastroianni and S. Pr\"ossdorf, pp 120--128 Semianalytic time-marching algorithms for semi-linear parabolic equations V. Maz'ya and V. Karlin, pp. 129--147 Proof versus formalization P. Naur, pp. 148--164 The rational Krylov algorithm for nonsymmetric eigenvalue problems. III: Complex shifts for real matrices A. Ruhe, pp. 165--176 ------------------------------ End of NA Digest ************************** -------